diff options
Diffstat (limited to 'third_party/abseil_cpp/absl/base/internal/sysinfo.h')
-rw-r--r-- | third_party/abseil_cpp/absl/base/internal/sysinfo.h | 74 |
1 files changed, 0 insertions, 74 deletions
diff --git a/third_party/abseil_cpp/absl/base/internal/sysinfo.h b/third_party/abseil_cpp/absl/base/internal/sysinfo.h deleted file mode 100644 index 119cf1f0e85b..000000000000 --- a/third_party/abseil_cpp/absl/base/internal/sysinfo.h +++ /dev/null @@ -1,74 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// This file includes routines to find out characteristics -// of the machine a program is running on. It is undoubtedly -// system-dependent. - -// Functions listed here that accept a pid_t as an argument act on the -// current process if the pid_t argument is 0 -// All functions here are thread-hostile due to file caching unless -// commented otherwise. - -#ifndef ABSL_BASE_INTERNAL_SYSINFO_H_ -#define ABSL_BASE_INTERNAL_SYSINFO_H_ - -#ifndef _WIN32 -#include <sys/types.h> -#endif - -#include <cstdint> - -#include "absl/base/config.h" -#include "absl/base/port.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace base_internal { - -// Nominal core processor cycles per second of each processor. This is _not_ -// necessarily the frequency of the CycleClock counter (see cycleclock.h) -// Thread-safe. -double NominalCPUFrequency(); - -// Number of logical processors (hyperthreads) in system. Thread-safe. -int NumCPUs(); - -// Return the thread id of the current thread, as told by the system. -// No two currently-live threads implemented by the OS shall have the same ID. -// Thread ids of exited threads may be reused. Multiple user-level threads -// may have the same thread ID if multiplexed on the same OS thread. -// -// On Linux, you may send a signal to the resulting ID with kill(). However, -// it is recommended for portability that you use pthread_kill() instead. -#ifdef _WIN32 -// On Windows, process id and thread id are of the same type according to the -// return types of GetProcessId() and GetThreadId() are both DWORD, an unsigned -// 32-bit type. -using pid_t = uint32_t; -#endif -pid_t GetTID(); - -// Like GetTID(), but caches the result in thread-local storage in order -// to avoid unnecessary system calls. Note that there are some cases where -// one must call through to GetTID directly, which is why this exists as a -// separate function. For example, GetCachedTID() is not safe to call in -// an asynchronous signal-handling context nor right after a call to fork(). -pid_t GetCachedTID(); - -} // namespace base_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_BASE_INTERNAL_SYSINFO_H_ |